stephen@comp.lancs.ac.uk (Stephen J. Muir) (02/03/87)
My fiancee is hard of hearing in the middle frequencies, but normal at the extremes of the audio spectrum. She has been told that a normal hearing aid would deafen her and that a band-pass hearing aid is not available. Does anyone out there know if such a thing is available please? -- EMAIL: stephen@comp.lancs.ac.uk | Post: University of Lancaster, UUCP: ...!mcvax!ukc!dcl-cs!stephen | Department of Computing, Phone: +44 524 65201 Ext. 4120 | Bailrigg, Lancaster, UK. Project:Alvey ECLIPSE Distribution | LA1 4YR
bill@sigma.UUCP (02/07/87)
<193@dcl-csvax.comp.lancs.ac.uk> stephen@comp.lancs.ac.uk (Stephen J. Muir): >My fiancee is hard of hearing in the middle frequencies, but normal at the >extremes of the audio spectrum. She has been told that a normal hearing aid >would deafen her and that a band-pass hearing aid is not available. Does >anyone out there know if such a thing is available please? I suffer from much the same problem (significant loss of hearing in the human voice range) and checked into this a couple years back. I was told that this type of hearing aid isn't available. I guess we just have to suffer, for now.. -- William Swan {ihnp4,decvax,allegra,...}!uw-beaver!tikal!sigma!bill chan 'eil Gaidhlig math againn /kha nel' gal'ig' mweh ag0n'/ (we do not speak good Gaelic)
ornitz@kodak.UUCP (02/08/87)
In article <193@dcl-csvax.comp.lancs.ac.uk> stephen@comp.lancs.ac.uk (Stephen J. Muir) writes: >My fiancee is hard of hearing in the middle frequencies, but normal at the >extremes of the audio spectrum. She has been told that a normal hearing aid >would deafen her and that a band-pass hearing aid is not available. Does >anyone out there know if such a thing is available please? I do not know of any commercial product that meets your needs, but you might try posting to the handicapped newsgroup. I built a similar device for my father-in-law to help him hear the telephone better. He has lost about all of his higher frequency hearing (as have many older folks). My amplifier included automatic level control, pre-emphasis of the highs, and bandpass filtering of 300 to 2700 Hz. This was a fairly crude all-analog circuit but he was well pleased with the result. He said that voices did not sound natural to him anymore (he was hearing some highs again) but that they were more understandable. If I had it to do over, I would use a switched capacitor filter and a few other tricks. Do not give up - perhaps a hearing aid company will come out with what you need. ----------------- | ___ ________ | | | / / | | Barry L. Ornitz UUCP:...!rochester!kodak!ornitz | | / / | | Eastman Kodak Company | |< < K O D A K| | Eastman Chemicals Division Research Laboratories | | \ \ | | P. O. Box 1972 | |__\ \________| | Kingsport, TN 37662 615/229-4904 | | -----------------